CA2390939C - The palette conveyance mechanism and the assembling line using it - Google Patents
The palette conveyance mechanism and the assembling line using it Download PDFInfo
- Publication number
- CA2390939C CA2390939C CA002390939A CA2390939A CA2390939C CA 2390939 C CA2390939 C CA 2390939C CA 002390939 A CA002390939 A CA 002390939A CA 2390939 A CA2390939 A CA 2390939A CA 2390939 C CA2390939 C CA 2390939C
- Authority
- CA
- Canada
- Prior art keywords
- pallet
- line
- conveying
- assembling
- conveying line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000002093 peripheral effect Effects 0.000 claims description 4
- SGPGESCZOCHFCL-UHFFFAOYSA-N Tilisolol hydrochloride Chemical compound [Cl-].C1=CC=C2C(=O)N(C)C=C(OCC(O)C[NH2+]C(C)(C)C)C2=C1 SGPGESCZOCHFCL-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 235000003642 hunger Nutrition 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 210000003254 palate Anatomy 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
- B23Q7/05—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting by means of roller-ways
- B23Q7/055—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting by means of roller-ways some of the rollers being driven
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
- B23Q7/02—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting by means of drums or rotating tables or discs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
- B23Q7/14—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting co-ordinated in production lines
- B23Q7/1426—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting co-ordinated in production lines with work holders not rigidly fixed to the transport devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G35/00—Mechanical conveyors not otherwise provided for
- B65G35/06—Mechanical conveyors not otherwise provided for comprising a load-carrier moving along a path, e.g. a closed path, and adapted to be engaged by any one of a series of traction elements spaced along the path
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
- Automatic Assembly (AREA)
- Framework For Endless Conveyors (AREA)
- Attitude Control For Articles On Conveyors (AREA)
Abstract
It is the pallet conveying mechanism to move a pallet P arrived at an end point 17b of a friction conveyer FC2 to a starting point 7a of a friction conveyer FC1 in just as it is the direction without turning. The pallet conveying mechanism is comprised of rollers 34 having a flange portion 34a to contact with the pallet P by arranging along a main frame 31 provided so as to connect the friction conveyer FC1 and FC2 with each other and a drive mechanism 35 for driving rollers 34.
Description
SPECIFICATION
THE PALETTE CONVEYANCE MECHANISM AND THE ASSEMBLING
LINE USING IT
FIELD OF THE INVENTION
The present invention relates to a conveying mechanism of a pallet having a vehicle body and an asseinbling line using it.
BACKGRAND ART
A vehicle assembling line is to assemble a vehicle by attaching several kinds of parts to a vehicle body while the vehicle body is transferred by a hunger or by a pallet carried along a conveying line. Hereupon, a wiring for an eleclxic system, an interior parts such as an instsumental panel and a seat, parts for underbody such as engine or tire, and exterior parts such as mirror or wiper are parts to be attached to the vehicle body.
Of these, a wiring for electric system and a part of interior parts such as the instrument panel are manually attached by workers with hand to the vehicle body loaded onto the pallet circulating through a liner-arrangement or a flat loop-arrangement conveying line. Especially, the assembling line installed the conveying 2o line as a flat loop-arrangement can be widely used because the constitution of the conveying line can be simpli.fied, in addition, utilization efficiency of a factory site can be improved.
Hereupon, as a conventional example of the assembling line installed the conveying line as a flat loop-arrangement and the pallet conveying mechanism used for this assembling line, some of these are disclosed in Japanese Unexamined Patent Publication Sho.58-22633 or Japanese Examined Patent Publication Sho.61-33743.
THE PALETTE CONVEYANCE MECHANISM AND THE ASSEMBLING
LINE USING IT
FIELD OF THE INVENTION
The present invention relates to a conveying mechanism of a pallet having a vehicle body and an asseinbling line using it.
BACKGRAND ART
A vehicle assembling line is to assemble a vehicle by attaching several kinds of parts to a vehicle body while the vehicle body is transferred by a hunger or by a pallet carried along a conveying line. Hereupon, a wiring for an eleclxic system, an interior parts such as an instsumental panel and a seat, parts for underbody such as engine or tire, and exterior parts such as mirror or wiper are parts to be attached to the vehicle body.
Of these, a wiring for electric system and a part of interior parts such as the instrument panel are manually attached by workers with hand to the vehicle body loaded onto the pallet circulating through a liner-arrangement or a flat loop-arrangement conveying line. Especially, the assembling line installed the conveying 2o line as a flat loop-arrangement can be widely used because the constitution of the conveying line can be simpli.fied, in addition, utilization efficiency of a factory site can be improved.
Hereupon, as a conventional example of the assembling line installed the conveying line as a flat loop-arrangement and the pallet conveying mechanism used for this assembling line, some of these are disclosed in Japanese Unexamined Patent Publication Sho.58-22633 or Japanese Examined Patent Publication Sho.61-33743.
2 The assembling line acxording to Japanese Unexamined Patent publication Sho.58-22633 is comprised of a pair of conveying lines and a pair of traverse lines connected to each other. Rails established along each line and a moving mechanism to move the pallet along the rails are applied for the pallet conveying mechanism.
Furthermore, the assembling line according to Japanese Examined Patent publication Sho.61-33743 has a pair of conveying lines and a traverse line connected to each other. Additionally, the pallet conveying mechanism used in this assembling line is comprised of a rack gear provided along the traverse line and a traversor equipped with the pallet to move from one edge to the other edge of a traverse line.
lo Moreover, the traversor has the constitution including a drive mechanism and a turning table engaging with a rack gear to turn the pallet by the rack gear.
According to this pallet conveying mechanism, the pallet is loaded onto the traversor to be transferred from one end portion to the other end portion of the traverse line, at the same time, it is turned 1$0 around by a turning of the turning table.
However, this assembling line has a problem such that the pallet conveying mechanism is complicated in structure. More specificaIly, the pallet conveying mechanism according to Japanese Unexamined Patent Publication Sho.58-22633 has a mechanism to slide the pallet along rails. Therefore, the pallet is required to have the mechanism capable of moving for not only lengthwise direction but also so breadthwise direction and means for switching the mobile direction.
Consequently, these cause the pallet conveying mechanism to be complicated in structure.
On the other hand, the pallet conveying mechanism according to Japanese Examined Patent Publication No.61-33743 has a mechanism to turn the pallet with conveying. Therefore, this causes the mechanism to be eomplicated for conveying the pallet. Meanwhile, since the following pallet can not be conveyed until the traversor is returned to the original position after conveying the pallet. Consequently, this has
Furthermore, the assembling line according to Japanese Examined Patent publication Sho.61-33743 has a pair of conveying lines and a traverse line connected to each other. Additionally, the pallet conveying mechanism used in this assembling line is comprised of a rack gear provided along the traverse line and a traversor equipped with the pallet to move from one edge to the other edge of a traverse line.
lo Moreover, the traversor has the constitution including a drive mechanism and a turning table engaging with a rack gear to turn the pallet by the rack gear.
According to this pallet conveying mechanism, the pallet is loaded onto the traversor to be transferred from one end portion to the other end portion of the traverse line, at the same time, it is turned 1$0 around by a turning of the turning table.
However, this assembling line has a problem such that the pallet conveying mechanism is complicated in structure. More specificaIly, the pallet conveying mechanism according to Japanese Unexamined Patent Publication Sho.58-22633 has a mechanism to slide the pallet along rails. Therefore, the pallet is required to have the mechanism capable of moving for not only lengthwise direction but also so breadthwise direction and means for switching the mobile direction.
Consequently, these cause the pallet conveying mechanism to be complicated in structure.
On the other hand, the pallet conveying mechanism according to Japanese Examined Patent Publication No.61-33743 has a mechanism to turn the pallet with conveying. Therefore, this causes the mechanism to be eomplicated for conveying the pallet. Meanwhile, since the following pallet can not be conveyed until the traversor is returned to the original position after conveying the pallet. Consequently, this has
3 a problem such that it takes much time to convey the pallet on the traverse line.
DISCLOSI7RE OF THE INV.CN'I'ION
Aocordingly, the object of the present invention is to provide the paIlet conveying mechanism capable of rapidly carculating the pallet through a simple mechanism, and the assembling line using this pallet conveying mc~han; cm _ The invention regarding claim 1 of the present invention is the pallet conveying mechanism, which connects a first conveying line and a second conveying line opposing to said first conveying line and carries the pallet from the end point of the lo first conveying line to the starting point of the second conveying line comprising a plurality of rollers arranged so as to move the pallet perpendicularly to the conveying directions of the first conveying line and the second conveying line, a driving means for rotating rollers, and a guide means for preventing the pallet from veering while the pallet is being conveyed. The pallet conveying mechanism constituted in this way can convey the pallet from the second conveying line to the first conveying line without turning. Additionally, provicfing the guide means can prevent the pallet from veering when said pallet is being conveyed from the first conveying line to the second conveying line, consequently, the pallet can be conveyed more rapidly.
Moreover, the invention regarding claim 2 is an assembling line comprising a 2o first conveying line, a second conveying line, a pallet conveying mechanism as set forth in claim 1 connecting the end point of the fust conveying line and the starting point of the second conveying line, and a traverse line connecttinng the end point of the second conveying line and the starting point of the first conveying line, wherein, parts are attached to a vehicle body loaded onto the pallet while the pallet is circulated through the assembling line.
The assembling line constituted in this way can tran,sfer the paIlet rapidly
DISCLOSI7RE OF THE INV.CN'I'ION
Aocordingly, the object of the present invention is to provide the paIlet conveying mechanism capable of rapidly carculating the pallet through a simple mechanism, and the assembling line using this pallet conveying mc~han; cm _ The invention regarding claim 1 of the present invention is the pallet conveying mechanism, which connects a first conveying line and a second conveying line opposing to said first conveying line and carries the pallet from the end point of the lo first conveying line to the starting point of the second conveying line comprising a plurality of rollers arranged so as to move the pallet perpendicularly to the conveying directions of the first conveying line and the second conveying line, a driving means for rotating rollers, and a guide means for preventing the pallet from veering while the pallet is being conveyed. The pallet conveying mechanism constituted in this way can convey the pallet from the second conveying line to the first conveying line without turning. Additionally, provicfing the guide means can prevent the pallet from veering when said pallet is being conveyed from the first conveying line to the second conveying line, consequently, the pallet can be conveyed more rapidly.
Moreover, the invention regarding claim 2 is an assembling line comprising a 2o first conveying line, a second conveying line, a pallet conveying mechanism as set forth in claim 1 connecting the end point of the fust conveying line and the starting point of the second conveying line, and a traverse line connecttinng the end point of the second conveying line and the starting point of the first conveying line, wherein, parts are attached to a vehicle body loaded onto the pallet while the pallet is circulated through the assembling line.
The assembling line constituted in this way can tran,sfer the paIlet rapidly
4 without turning from the end point of the first conveying line to the starting point of the second conveying line due to a sliding mechanism. Consequently, this simple mechanism can efficiently circulate the pallet to assemble the vehicle body.
Furthermore, the invention regarding claim 3 is the assembling line as set forth in daim 2 wherein the traverse line has a tuxning table at both ends of the traverse line to turn the pallet 90 around.
According to the assembling line constituted in this way, turning the paIlet 180 around on the traverse line can always prevent the vehicle body loaded onto the pallet from veering in the direction of the first and second oonveying line.
Consequently, the working efficiency of workers can be improved.
BRIEF DESCR,IP'iZON OF THE DRAWINGS
Fig.1 is a whole structural view of a vehicle assembling line including an assembling line of the present embodiment.
Fig.2 is a schematical view of an assembling line of the present embodiment seen from top.
Fig.3 (a) is a cxoss sectional view of a friction conveyer, (b) is a view of pallet seen from top.
Fig.4 (a) is a view of a first turning table seen from top, (b) is a side view of a first turning table.
Fig.5 (a) is a partial enlarged view of a second traverse line, (b) is a side cross sectional view of (a).
Figs.6 (a), (b) are an explanatory view to explain a movement of a drop lifter used in an assembling line.
Figs.7 (a), (b) are an explanatory view to explain a movement of a drop lifter used in an assembling line.
~
BEST MODE FOR CARRYING OUT THE RO'ET-MON
The embodiment of the present invention is described in detail with reference to drawings.
Furthermore, the invention regarding claim 3 is the assembling line as set forth in daim 2 wherein the traverse line has a tuxning table at both ends of the traverse line to turn the pallet 90 around.
According to the assembling line constituted in this way, turning the paIlet 180 around on the traverse line can always prevent the vehicle body loaded onto the pallet from veering in the direction of the first and second oonveying line.
Consequently, the working efficiency of workers can be improved.
BRIEF DESCR,IP'iZON OF THE DRAWINGS
Fig.1 is a whole structural view of a vehicle assembling line including an assembling line of the present embodiment.
Fig.2 is a schematical view of an assembling line of the present embodiment seen from top.
Fig.3 (a) is a cxoss sectional view of a friction conveyer, (b) is a view of pallet seen from top.
Fig.4 (a) is a view of a first turning table seen from top, (b) is a side view of a first turning table.
Fig.5 (a) is a partial enlarged view of a second traverse line, (b) is a side cross sectional view of (a).
Figs.6 (a), (b) are an explanatory view to explain a movement of a drop lifter used in an assembling line.
Figs.7 (a), (b) are an explanatory view to explain a movement of a drop lifter used in an assembling line.
~
BEST MODE FOR CARRYING OUT THE RO'ET-MON
The embodiment of the present invention is described in detail with reference to drawings.
5 Fig.1 is a whole structural view of the vehicle assembling line including the assembling line of the embodiment, Fig.2 is a schematical view of the assembling line of the present embodiment seen from top, Fig.3 (a) is a cross sectional view of a friction conveyer comprising the assembling line.
Besides, in the present embodiment, a lengthwise direction is a direction of the vehicle body length and a conveying direction of each conveyer. On the other hand, a lateral direction is the breathwise direction of the vehicle body and a perpendicular direction to a conveying direction of each conveyer.
First of all, a whole structure of the vehicle assembling line L is described with reference to Fig.l. The vehicle assembling line L is to assemble the vehicle through conveying the vehicle body F along arrow marks of a drawing. And it is classified as a main line, a sub-line and a door assembling line depending on a region. The main line is comprised of a plurality of assembling zone classified several ldnds of parts attaching to a vehicle body F depending on attaching region (for example, interior, exterior and underbody, etc.) such as a wiring zone WZ for electric system, an interior zone IZ, a underbody zone UZ, an exterior zone EZ and a combination zone CZ.
The sub-line is comprised of an engine sub-assembling. The door assembling line is comprised of FR door line and RR door line connected to the main line in case of necessary.
Hereupon, each zone will be described.
First of all, the wiring zone WZ is a zone wherein an electric wiring of the vehicle and LAN wiring, pipeline, etc for inside of the vehicle are integrally attached.
Besides, in the present embodiment, a lengthwise direction is a direction of the vehicle body length and a conveying direction of each conveyer. On the other hand, a lateral direction is the breathwise direction of the vehicle body and a perpendicular direction to a conveying direction of each conveyer.
First of all, a whole structure of the vehicle assembling line L is described with reference to Fig.l. The vehicle assembling line L is to assemble the vehicle through conveying the vehicle body F along arrow marks of a drawing. And it is classified as a main line, a sub-line and a door assembling line depending on a region. The main line is comprised of a plurality of assembling zone classified several ldnds of parts attaching to a vehicle body F depending on attaching region (for example, interior, exterior and underbody, etc.) such as a wiring zone WZ for electric system, an interior zone IZ, a underbody zone UZ, an exterior zone EZ and a combination zone CZ.
The sub-line is comprised of an engine sub-assembling. The door assembling line is comprised of FR door line and RR door line connected to the main line in case of necessary.
Hereupon, each zone will be described.
First of all, the wiring zone WZ is a zone wherein an electric wiring of the vehicle and LAN wiring, pipeline, etc for inside of the vehicle are integrally attached.
6 The vehicle body F is conveyed by an overhead conveyer OC1 on the upper portion thereon while the vehicle body F is conveyed by a friction conveyer FC1 on the lower portion thereon.
The interior zone IZ is a zone wherein interior parts and floor parts, etc are integrally attached to the vehicle body by transfeiring them with frictaon conveyors FC2 and FC3. Hereupon, an instrumental panel, a pedal and each linings, etc are attached to the vehide body F. Besides, an overhead conveyer OC2 is provided in between the friction conveyer FC1 and the friction conveyer FC2 to transfer the vehicle body F from a second floor to a first floor.
The underbody zone UZ is a zone wherein parts for an underbody of the vehicle are integraIly attached. Parts for underbody, suspension, engine and tires, etc are attached to the vehicle body F being conveyed by an over head conveyer OC
3.
The exterior zone EZ is a zone wherein exterior parts are integrally attached to the vehicle body. A window glass, a seat and a bumper, etc are attached to the vehicle body F being conveyed by a friction conveyer FC4.
The combination zone FZ is a zone wherein a functional confirmataon is carried out for any lflnds of parts and equipment attached on the each assembling zone on the upper portion. Hereupon, this functional confirmation is to confirm turning on the light and connecting terminal, etc.
Secondly, the assembling line 1 of the present embodiment is described.
The assembling line 1 shown in Fig.2'is formed as one portion of the vehicle assembling line L shown in Fig.1. It is the flat loop-airangement assembling line comprising the friction conveyer FC 1 on the lower portion of the wiring zone WZ for an electric system, the friction conveyer FC 2 on the upper portion of the interior zone IZ, and the fust traverse line 2 and the second traverse line 3 connecting with said friction conveyer FC 1 and FC 2.
o
The interior zone IZ is a zone wherein interior parts and floor parts, etc are integrally attached to the vehicle body by transfeiring them with frictaon conveyors FC2 and FC3. Hereupon, an instrumental panel, a pedal and each linings, etc are attached to the vehide body F. Besides, an overhead conveyer OC2 is provided in between the friction conveyer FC1 and the friction conveyer FC2 to transfer the vehicle body F from a second floor to a first floor.
The underbody zone UZ is a zone wherein parts for an underbody of the vehicle are integraIly attached. Parts for underbody, suspension, engine and tires, etc are attached to the vehicle body F being conveyed by an over head conveyer OC
3.
The exterior zone EZ is a zone wherein exterior parts are integrally attached to the vehicle body. A window glass, a seat and a bumper, etc are attached to the vehicle body F being conveyed by a friction conveyer FC4.
The combination zone FZ is a zone wherein a functional confirmataon is carried out for any lflnds of parts and equipment attached on the each assembling zone on the upper portion. Hereupon, this functional confirmation is to confirm turning on the light and connecting terminal, etc.
Secondly, the assembling line 1 of the present embodiment is described.
The assembling line 1 shown in Fig.2'is formed as one portion of the vehicle assembling line L shown in Fig.1. It is the flat loop-airangement assembling line comprising the friction conveyer FC 1 on the lower portion of the wiring zone WZ for an electric system, the friction conveyer FC 2 on the upper portion of the interior zone IZ, and the fust traverse line 2 and the second traverse line 3 connecting with said friction conveyer FC 1 and FC 2.
o
7 Besides, in the present embodiment, the friction conveyer FC 1 is indicating the second conveying line described within the confines of claim, similarly, the friction conveyer FC 2 is indicating the first conveying line, and the fust traverse line 3 is indicating the traverse line respectively.
The friction conveyer FC 1, as indicating in Fig.2 and Fig.3 (a), has two rails 6,6 established in parallel by fixing means 5a on the bottom face of a slender pit 5 formed on a floor face 4 to transfer the pallet P along these rails 6.
Hereupon, the pallet P is tranaferred by a driving portion 8 and a stopping portion 10 provided on a starting point 7a (right end in Fig.2) and an end point 7b (left end in Fig.2) of the friction conveyer M. Besides in Fig.2, the pallets P are positioned at intervals on the friction conveyer FC1. But actually, each pallet P is positioned such that a front face 9a is contacted with a rear face 9b of the other pallet P to serve the rear pallet P to push the front pallet P for moving on the rail 6.
Hereupon, the driving portion 8 is comprised of a rotatable cylindrical-shaped drive roller 8a and a roller drive motor 8b to rotate a drive roller 8a. The drive roller 8a is provided such that the peripheral surface is contacted with a side surface 9c of the pallet P to push out the pallet P by transmitting a torque generated in the driving roller 8a to the side face 9c of the pallet P tbrough driving the roller drive motor 8b.
On the other hand, the stopping portion 10 causes a friction on the surface between the pallet P and the stopping portion 10 through rotating a lower rotating speed than that of the drive roller 8a to stop the pallet P. The constitution is the same as the driving portion 8.
Besides, in Figs.2, 12 is guide roller provided to stabilize the movement of the pallet P when driving or stopping. However, the guide roller 12 is not connected with a drive motor but it is contacted with a side face 9c of the pallet P, at the same time, it only rotates in accordance with the movement of the pallet P.
The friction conveyer FC 1, as indicating in Fig.2 and Fig.3 (a), has two rails 6,6 established in parallel by fixing means 5a on the bottom face of a slender pit 5 formed on a floor face 4 to transfer the pallet P along these rails 6.
Hereupon, the pallet P is tranaferred by a driving portion 8 and a stopping portion 10 provided on a starting point 7a (right end in Fig.2) and an end point 7b (left end in Fig.2) of the friction conveyer M. Besides in Fig.2, the pallets P are positioned at intervals on the friction conveyer FC1. But actually, each pallet P is positioned such that a front face 9a is contacted with a rear face 9b of the other pallet P to serve the rear pallet P to push the front pallet P for moving on the rail 6.
Hereupon, the driving portion 8 is comprised of a rotatable cylindrical-shaped drive roller 8a and a roller drive motor 8b to rotate a drive roller 8a. The drive roller 8a is provided such that the peripheral surface is contacted with a side surface 9c of the pallet P to push out the pallet P by transmitting a torque generated in the driving roller 8a to the side face 9c of the pallet P tbrough driving the roller drive motor 8b.
On the other hand, the stopping portion 10 causes a friction on the surface between the pallet P and the stopping portion 10 through rotating a lower rotating speed than that of the drive roller 8a to stop the pallet P. The constitution is the same as the driving portion 8.
Besides, in Figs.2, 12 is guide roller provided to stabilize the movement of the pallet P when driving or stopping. However, the guide roller 12 is not connected with a drive motor but it is contacted with a side face 9c of the pallet P, at the same time, it only rotates in accordance with the movement of the pallet P.
8 What is more, the driving portion 8 and the stopping portion 10 can be also constituted as movable on a stand-by position away from the palate P with a predetermined distance when not using. In case of this, when the pallet P is pushed out, the drive roIler 8a moves so as to contact with the side face 9c of the pallet P from a stand-by position. Moreover, the drive roller 8a is returned to the original stand-by position again after the pallet P was pushed out. On the other hand, the stopping portion 10 keeps the condition of remaining stay on the stand-by position for this moment. Additionally, when stopping the pallet P, the drive portion 8 is waiting on the stand-by position, in the meantime, only the stopping portaon 10 moves so as to contact with a side face 9c of the pallet P to stop the pallet P.
Hereupon, as indicating in Figs.3 (a) and (b), the pallet P using for conveying the vehicle body F has a slender shape wherein four holding portions 13 are provided on the symmetrical position for the lengthwise direction of the pallet P to support the vehide body F. What is more, concave portions 14 are formed on the inner position than the holding portion 13 on the pallet to avoid the protruded portion of the vehicle body F. This allows the height from the pallet P to the vehicle body F to be shortened.
Consequently, a work for attaching a wiring part PW to the vehide body F can be easy.
Additionally, a plurality of positioning grooves (not shown) is formed in accordance with a type of vehicles (the length of vehicle body F) on the upper surface of the holding portion 13 to always maintain an invariable position for loading the vehicle body F. This is the constitution capable of responding to di$'erent type of vehicles.
Moreover, wheels 16 axially supported by a plurality of bearing 15 are allocated to under the pallet P. When these wheels 16 are skidded on the rail 6, 6 of the friction conveyer FC1, the pallet P can be moved along the rail 6, 6.
Besides, a I flange 16a is provided on the wheel 16 to avoid derailing firom the rail 6.
Furthermore, the friction conveyer FC2 is the conveying line to attach the
Hereupon, as indicating in Figs.3 (a) and (b), the pallet P using for conveying the vehicle body F has a slender shape wherein four holding portions 13 are provided on the symmetrical position for the lengthwise direction of the pallet P to support the vehide body F. What is more, concave portions 14 are formed on the inner position than the holding portion 13 on the pallet to avoid the protruded portion of the vehicle body F. This allows the height from the pallet P to the vehicle body F to be shortened.
Consequently, a work for attaching a wiring part PW to the vehide body F can be easy.
Additionally, a plurality of positioning grooves (not shown) is formed in accordance with a type of vehicles (the length of vehicle body F) on the upper surface of the holding portion 13 to always maintain an invariable position for loading the vehicle body F. This is the constitution capable of responding to di$'erent type of vehicles.
Moreover, wheels 16 axially supported by a plurality of bearing 15 are allocated to under the pallet P. When these wheels 16 are skidded on the rail 6, 6 of the friction conveyer FC1, the pallet P can be moved along the rail 6, 6.
Besides, a I flange 16a is provided on the wheel 16 to avoid derailing firom the rail 6.
Furthermore, the friction conveyer FC2 is the conveying line to attach the
9 interior parts PI such as an instrumental panel to inside of the vehicle body F. The structure is the same as a one of the friction conveyer FC 1 for omitting the explanation.
Next, the first traverse line 2 and the second traverse line 3 are explained The first traverse line 2 is to move the vehicle body F loaded onto the pallet from the end point 7b of the friction conveyer FC1 to the starting point 17a of the friction conveyer FC2. As indicating in Fig.2, it has a first turning table 21 and a second turning table 22 to turn the pallet P 90 around and a conveying line between tables to move the pallet P from the first turning table 21 to the second turning table 22.
The first turning table 21, as indicating in Figs.4 (a), (b), has two rails 6, a frame body 24 to support the rail 6, a rotary center portion 25 positioned on the center of this flame body 24 for equipping with a rotary shaft, and a rotary driving means 26 provided under the frame body 24 to rotate the frame body 24 around a center of a rotary center portion 25.
The frame body 24 has the side frames 24a provided on a parallel to the rail 6 and the connecting frames 24b to connect the side frames 24a with each other.
The stopping portion 10 to stop the pallet P introducing into the first turning table 21, the drivin.g portion 8 to push out the pallet P into the conveying line 23 between tables and the guide roller 12 are fixed on the frame body 24. Besides, 24c is an auxiliary frame body having a role of the auxiliary when fixing the driving portion 8 and the stopping portion 10 on the frame body 24. The frame body 24 and the rotary center portion 25 are connected with each other through this frame body 24c.
Moreover, the rotary driving means 26 is comprised of four wheels 27 provided under the surface of the frame body 24 and the wheel driving motor 28 to rotate the wheel 27. The rotary driving means 26 rotationally moves the wheel ~
along the annular guide ring 29 by driving the wheel driving motor 28 through a signal from a controlling portion (not shown) to turn the first turning table 21 by 90 around toward a predetermined direction.
Also, the second turning table 22 is to feed the pallet P received from the 5 conveying line 23 between tables to the friction conveyer FC2 after turning the paIlet P
by 90 around. It is the same structure as the one of the first turning table 21 for omitting an explanation.
Moreover, the conveying line 23 between tables has two rails 6 and it has a role of delivering the pallet P pushed out from the driving portion 8 of the first turning
Next, the first traverse line 2 and the second traverse line 3 are explained The first traverse line 2 is to move the vehicle body F loaded onto the pallet from the end point 7b of the friction conveyer FC1 to the starting point 17a of the friction conveyer FC2. As indicating in Fig.2, it has a first turning table 21 and a second turning table 22 to turn the pallet P 90 around and a conveying line between tables to move the pallet P from the first turning table 21 to the second turning table 22.
The first turning table 21, as indicating in Figs.4 (a), (b), has two rails 6, a frame body 24 to support the rail 6, a rotary center portion 25 positioned on the center of this flame body 24 for equipping with a rotary shaft, and a rotary driving means 26 provided under the frame body 24 to rotate the frame body 24 around a center of a rotary center portion 25.
The frame body 24 has the side frames 24a provided on a parallel to the rail 6 and the connecting frames 24b to connect the side frames 24a with each other.
The stopping portion 10 to stop the pallet P introducing into the first turning table 21, the drivin.g portion 8 to push out the pallet P into the conveying line 23 between tables and the guide roller 12 are fixed on the frame body 24. Besides, 24c is an auxiliary frame body having a role of the auxiliary when fixing the driving portion 8 and the stopping portion 10 on the frame body 24. The frame body 24 and the rotary center portion 25 are connected with each other through this frame body 24c.
Moreover, the rotary driving means 26 is comprised of four wheels 27 provided under the surface of the frame body 24 and the wheel driving motor 28 to rotate the wheel 27. The rotary driving means 26 rotationally moves the wheel ~
along the annular guide ring 29 by driving the wheel driving motor 28 through a signal from a controlling portion (not shown) to turn the first turning table 21 by 90 around toward a predetermined direction.
Also, the second turning table 22 is to feed the pallet P received from the 5 conveying line 23 between tables to the friction conveyer FC2 after turning the paIlet P
by 90 around. It is the same structure as the one of the first turning table 21 for omitting an explanation.
Moreover, the conveying line 23 between tables has two rails 6 and it has a role of delivering the pallet P pushed out from the driving portion 8 of the first turning
10 table 21 to the second turning table 22 in just as it is the direction.
What is more, the second traverse line 3 is described with reference to Fig.2 and Figs.5 (a), (b).
The second traverse line 3, as indicating in Fig.2, is to move the pallet P
arrived at the end point 17b of the friction conveyer FC2 to the starting point 7a of the friction conveyer FC1 in just as it is the direction without turning. As indicating in Figs 5(a), (b), that structure has the main frame 31 having a concave-shaped section to avoid wheels 16 of the pallet P, the side frame 32 provided on the side of the main frame 31 at a regular intervals, a plurality of rollers 34 formed by the main frame 31 and the side frame 32 and arranged on two abreast of grooves 33 perpendicular to the conveying direction of the pallet P on the friction conveyers FC1, FC2, and the driving mechanism 35 to drive the rollers 34. Besides, a cover 36 to protect the driving mechanism 35 is provided above the side frame 32.
Additionally, as indicating in Fig.2, the rail 6a to receive an empty pallet P
from the friction conveyer FC2, or to feed an empty pallet P to the friction conveyer FC1 is established on both ends of the second traverse line 3. This rail 6a is capable of moving up and down. When the pallet P is moved by the rollers 34, these rails 6a are
What is more, the second traverse line 3 is described with reference to Fig.2 and Figs.5 (a), (b).
The second traverse line 3, as indicating in Fig.2, is to move the pallet P
arrived at the end point 17b of the friction conveyer FC2 to the starting point 7a of the friction conveyer FC1 in just as it is the direction without turning. As indicating in Figs 5(a), (b), that structure has the main frame 31 having a concave-shaped section to avoid wheels 16 of the pallet P, the side frame 32 provided on the side of the main frame 31 at a regular intervals, a plurality of rollers 34 formed by the main frame 31 and the side frame 32 and arranged on two abreast of grooves 33 perpendicular to the conveying direction of the pallet P on the friction conveyers FC1, FC2, and the driving mechanism 35 to drive the rollers 34. Besides, a cover 36 to protect the driving mechanism 35 is provided above the side frame 32.
Additionally, as indicating in Fig.2, the rail 6a to receive an empty pallet P
from the friction conveyer FC2, or to feed an empty pallet P to the friction conveyer FC1 is established on both ends of the second traverse line 3. This rail 6a is capable of moving up and down. When the pallet P is moved by the rollers 34, these rails 6a are
11 moved downward, therefore, the pallet P can be moved in traverse direction along the rollers 34. Besides, driving and stopping the pallet P is carried out by the driving portion 8 and the stopping portion 10 provided on the end frame 31a allocated to both ends of the main frame 31.
Hereupon, the roller 34 has the rotary shaft 37. The rotary shaft 37 is axially supported on the main frame 31 and the side frame 32 by a bearing (not shown), a flange 34a of a guide means is provided on the peripheral portion of a sub frame side 32 of the rollers 34. This flange 34a is provided so as to be contacted with a front face 9a or a rear face 9b of the pallet P to prevent the pallet P from veering or jumping out of the second traverse line.
The drive mechanism 35 is comprised of a drive mechanism motor 38 provided as one per a plurality of rollers 34 allocated in one row, a rotary transmission box 39 made of such as a gear (not shown) to transmit the rotation of the drive m~ motor 38 to the rotary shaft 37, a sprocket 40 provided in the rotary shaft 37 and a chain 41 winded around the sprocket 40. When the drive motor 38 is driven, the chain 41 is also driven in response to this, consequently, this causes the roller 34 arra.nged in one row to be rotated.
Besides, the roller 34 equipped with a flange 34a and the drive mechanism 35 comprise the paIlet conveying mechanism described within the confines of claims.
Next, the assembling work of the vehicle body F in the assembling line 1 is described.
First of all, the vehicle body F conveyed by the over head conveyer OC1 indicating in Fig.1 is transferred and loaded onto the pallet P by the drop lifter DL.
As shown in Fig.2, the drop lifter DL is installed on the starting point 7a of the friction conveyer FC 1 and the end point 17b of the friction conveyer FC2 to have the constitution as shown in Fig.6 and Fig.7. That is to say, when the vehicle body F
Hereupon, the roller 34 has the rotary shaft 37. The rotary shaft 37 is axially supported on the main frame 31 and the side frame 32 by a bearing (not shown), a flange 34a of a guide means is provided on the peripheral portion of a sub frame side 32 of the rollers 34. This flange 34a is provided so as to be contacted with a front face 9a or a rear face 9b of the pallet P to prevent the pallet P from veering or jumping out of the second traverse line.
The drive mechanism 35 is comprised of a drive mechanism motor 38 provided as one per a plurality of rollers 34 allocated in one row, a rotary transmission box 39 made of such as a gear (not shown) to transmit the rotation of the drive m~ motor 38 to the rotary shaft 37, a sprocket 40 provided in the rotary shaft 37 and a chain 41 winded around the sprocket 40. When the drive motor 38 is driven, the chain 41 is also driven in response to this, consequently, this causes the roller 34 arra.nged in one row to be rotated.
Besides, the roller 34 equipped with a flange 34a and the drive mechanism 35 comprise the paIlet conveying mechanism described within the confines of claims.
Next, the assembling work of the vehicle body F in the assembling line 1 is described.
First of all, the vehicle body F conveyed by the over head conveyer OC1 indicating in Fig.1 is transferred and loaded onto the pallet P by the drop lifter DL.
As shown in Fig.2, the drop lifter DL is installed on the starting point 7a of the friction conveyer FC 1 and the end point 17b of the friction conveyer FC2 to have the constitution as shown in Fig.6 and Fig.7. That is to say, when the vehicle body F
12 arrives at the drop lifter DL (Fig.6 (a)), sliders 52 are risen along two posts 51 such that a holding portion 53 fixed on the slider 52 supports a side sill of the vehicle body F.
Then, the arm opening and closing portions provided on the upper portion of the posts 51 open the arm portions 54 of the over head hanger 50 toward traverse direction 5(Fig.6 (b)), the vehicle body F supported by only the holding portion 53 is tran.sferred downward as shown in Fig.7 (a) to be transferred and loaded onto the pallet P
waiting in lower portion (Fig.7 (b)).
Thereafter the controlling portion (not shown) drives a drive roller 8a of a drive portion 8 to push out the pallet P from the starting point 7a to the end point 7b of the friction conveyer FCl after confirming through such as light sensor whether the vehicle body F is loaded onto the pallet P.
The worker gets into the pallet P or the vehicle body F to attach parts PW to inside of the vehicle before the pallet P arrives at the end point 7b of the friction conveyer FC l. And the vehicle body F which was ended to the functional guarantee check of the attached parts PW amves at the end point 7b of the friction conveyer FCl with loading onto the pallet P to be decelerated and stopped by the stooping portion 10 of the end point 7b.
Hereupon, the controlling portion drives the drive roller 8a of the drive portion 8 to push out the pallet P to the first turning table 21 after confirming the direction of the first turning table 21 of the first traverse line 2.
The pallet P introduced to the fust turning table 21 is stopped on the rai16 of the first turning table 21 by the stopping portion 10 fixed on the frame body 24. Then a wheel drive motor 28 rotates a wheel 27 to turn the pallet P by 90 around counter clockwise toward the conveying line 23 between turning tables.
After turning the pallet P is completed, the driving roller 8a of the driving portion 8 pushes out the pallet P to the conveying line 23 between turning tables and
Then, the arm opening and closing portions provided on the upper portion of the posts 51 open the arm portions 54 of the over head hanger 50 toward traverse direction 5(Fig.6 (b)), the vehicle body F supported by only the holding portion 53 is tran.sferred downward as shown in Fig.7 (a) to be transferred and loaded onto the pallet P
waiting in lower portion (Fig.7 (b)).
Thereafter the controlling portion (not shown) drives a drive roller 8a of a drive portion 8 to push out the pallet P from the starting point 7a to the end point 7b of the friction conveyer FCl after confirming through such as light sensor whether the vehicle body F is loaded onto the pallet P.
The worker gets into the pallet P or the vehicle body F to attach parts PW to inside of the vehicle before the pallet P arrives at the end point 7b of the friction conveyer FC l. And the vehicle body F which was ended to the functional guarantee check of the attached parts PW amves at the end point 7b of the friction conveyer FCl with loading onto the pallet P to be decelerated and stopped by the stooping portion 10 of the end point 7b.
Hereupon, the controlling portion drives the drive roller 8a of the drive portion 8 to push out the pallet P to the first turning table 21 after confirming the direction of the first turning table 21 of the first traverse line 2.
The pallet P introduced to the fust turning table 21 is stopped on the rai16 of the first turning table 21 by the stopping portion 10 fixed on the frame body 24. Then a wheel drive motor 28 rotates a wheel 27 to turn the pallet P by 90 around counter clockwise toward the conveying line 23 between turning tables.
After turning the pallet P is completed, the driving roller 8a of the driving portion 8 pushes out the pallet P to the conveying line 23 between turning tables and
13 the pallet P arrives at the second turning table 22 via the conveying line 23 between turning tables. Hereinafter, the pallet P is pushed out to the friction conveyer FC 2 after turning the pallet P by 900 around clockwise in the same way of the operation on the first turning table 21:
The pallet P is conveyed on the friction conveyer FC2 in the same way of the operation on the friction conveyer FC1, in the meantime, the worker attaches interior parts PI such as instrumental panel to the vehicle body F.
Then, the pallet P is stopped by the stopping portion 10 on the end point 17b of the frictaon conveyer FC2 where the vehicle body F is transferred and loaded onto the over head hanger 50 of the over head conveyer OC2 by the drop lifter DL.
And after the vehicle body F is transferred and loaded onto the overhead hanger 50, an empty pallet P is introduced to the second traverse line 3 through driving a drive roller 8a.
After the empty pallet P is introduced to the second traverse line 3 and the flange portion 34a of the roller 34 is contacted with the front face 9a of the pallet P, a driving means 35 drives a chain 41 to rotate a plurality of rollers 34 arranged in two rows.
Rotating the roller 34 allows the pallet P to be transferred on the second traverse line 3 in traversal direction toward the friction conveyer FC1 from the friction conveyer FC2.
When the pallet P arrived at the end portion of the frictaon conveyer FC1 side of the second traverse line 3, the driving means 35 is stopped and the pallet P is pushed out to the starting point 7a of the friction conveyer FC 1 by the drive portion 8.
Repeating aforementioned movement allows the pallet P to be transferred by circulating through the flat-loop arrangement assembling line 1. This assembling line 1 has a symmetrical configuration for a lengthwise conveying direction of the pallet P.
The pallet P is conveyed on the friction conveyer FC2 in the same way of the operation on the friction conveyer FC1, in the meantime, the worker attaches interior parts PI such as instrumental panel to the vehicle body F.
Then, the pallet P is stopped by the stopping portion 10 on the end point 17b of the frictaon conveyer FC2 where the vehicle body F is transferred and loaded onto the over head hanger 50 of the over head conveyer OC2 by the drop lifter DL.
And after the vehicle body F is transferred and loaded onto the overhead hanger 50, an empty pallet P is introduced to the second traverse line 3 through driving a drive roller 8a.
After the empty pallet P is introduced to the second traverse line 3 and the flange portion 34a of the roller 34 is contacted with the front face 9a of the pallet P, a driving means 35 drives a chain 41 to rotate a plurality of rollers 34 arranged in two rows.
Rotating the roller 34 allows the pallet P to be transferred on the second traverse line 3 in traversal direction toward the friction conveyer FC1 from the friction conveyer FC2.
When the pallet P arrived at the end portion of the frictaon conveyer FC1 side of the second traverse line 3, the driving means 35 is stopped and the pallet P is pushed out to the starting point 7a of the friction conveyer FC 1 by the drive portion 8.
Repeating aforementioned movement allows the pallet P to be transferred by circulating through the flat-loop arrangement assembling line 1. This assembling line 1 has a symmetrical configuration for a lengthwise conveying direction of the pallet P.
14 Therefore, a following vehicle body F can be loaded on the pallet P without turning on the second traverse line 3. This allows the second traverse line 3 to have a simple structure without a turning mechanism. Additionally, a time period to convey the pallet P can be shortened because of not involving in a turning movement.
What is more, since the pallet is turned by 180 around on the first traverse line 2, the front portion of the vehicle body F is always ahead of the conveying direction of the friction conveyer FC1 and FC2, consequently, the worker can easily work and the working efficiency of assembling the vehicle body F can be improved.
However, though forward and backward of the pallet P is turned whenever the pallet P is rounding around the assembling line 1, this has no influence on loading the vehicle body F onto the pallet P and attaching work of the parts PW, PI to the vehicle body F
because the pallet P has a symmetrical configuration for the lengthwise direction.
Besides, the present invention is not restricted to the embodiment, but it is widely applied. For example, the first and second conveying line can be the conveying line equipped with a well-known conveying means such as a chain conveyer or a belt conveyer for conveying the pallet P instead of the friction conveyer FC 1, FC2.
Furthermore, it can also be the assembling line 1 provided a lift to hoist and bring down the pallet P for delivering between the friction conveyer FC 1, FC2 and the first traverses line 2, the second traverse line 3 respectively by providing the first traverse Iine 2 and the second traverse line 3 on the position higher or lower than a floor face 4 wherein the friction conveyer FC1, FC2 are installed.
What is more, the pallet P can be turned 180 around on the first turning table 21 without installing the second turning table 22 on the first traverse line 2.
The assembling line 1 can be simple mechanism due to a reduction of a turning mechanism.
Additionally, the constitution of the first traverse line 2 is the same as that of the second line 3 and it can also be the mechanism that the vehide body F
loaded on the pallet P received from the friction conveyer FC1 is delivered to the friction conveyer FC2 without turning.
Then, the guide means can also be a roller provided so as to be contacted with 5 a side face 9c of the pallet P instead of the flange 34a formed along the periphery of the roller 34.
IlVDUSTRIAL APPLICABILI'I'Y
The present invention is the pallet conveying mechanism equipped with 10 rollers having a flange to contact with the pallet. This conveying mechanism is to convey the pallet from the second conveying line to the first conveying line without turning. Therefore, the flange can prevent the pallet from veering while the rollers allow the pallet to be moved in parallel. Consequently, the pallet can be rapidly conveyed through a simple conveying mechanism.
'5 Additionally, since the assembling line is a loop arrangement using said pallet conveying mechanism, the simple conveying mechanism can circulate the pallet efficiently to assemble the vehicle body.
Moreover, since the turning table to turn the pallet is provided on both ends of the traverse line to convey the pallet from the first conveying line to the second conveying line, the direction of the vehicle body loaded onto the pallet can be always invaria.ble for the conveying direction of the fxst and second conveying lines.
Consequently, the working efficiency of workers can be improved.
What is more, since the pallet is turned by 180 around on the first traverse line 2, the front portion of the vehicle body F is always ahead of the conveying direction of the friction conveyer FC1 and FC2, consequently, the worker can easily work and the working efficiency of assembling the vehicle body F can be improved.
However, though forward and backward of the pallet P is turned whenever the pallet P is rounding around the assembling line 1, this has no influence on loading the vehicle body F onto the pallet P and attaching work of the parts PW, PI to the vehicle body F
because the pallet P has a symmetrical configuration for the lengthwise direction.
Besides, the present invention is not restricted to the embodiment, but it is widely applied. For example, the first and second conveying line can be the conveying line equipped with a well-known conveying means such as a chain conveyer or a belt conveyer for conveying the pallet P instead of the friction conveyer FC 1, FC2.
Furthermore, it can also be the assembling line 1 provided a lift to hoist and bring down the pallet P for delivering between the friction conveyer FC 1, FC2 and the first traverses line 2, the second traverse line 3 respectively by providing the first traverse Iine 2 and the second traverse line 3 on the position higher or lower than a floor face 4 wherein the friction conveyer FC1, FC2 are installed.
What is more, the pallet P can be turned 180 around on the first turning table 21 without installing the second turning table 22 on the first traverse line 2.
The assembling line 1 can be simple mechanism due to a reduction of a turning mechanism.
Additionally, the constitution of the first traverse line 2 is the same as that of the second line 3 and it can also be the mechanism that the vehide body F
loaded on the pallet P received from the friction conveyer FC1 is delivered to the friction conveyer FC2 without turning.
Then, the guide means can also be a roller provided so as to be contacted with 5 a side face 9c of the pallet P instead of the flange 34a formed along the periphery of the roller 34.
IlVDUSTRIAL APPLICABILI'I'Y
The present invention is the pallet conveying mechanism equipped with 10 rollers having a flange to contact with the pallet. This conveying mechanism is to convey the pallet from the second conveying line to the first conveying line without turning. Therefore, the flange can prevent the pallet from veering while the rollers allow the pallet to be moved in parallel. Consequently, the pallet can be rapidly conveyed through a simple conveying mechanism.
'5 Additionally, since the assembling line is a loop arrangement using said pallet conveying mechanism, the simple conveying mechanism can circulate the pallet efficiently to assemble the vehicle body.
Moreover, since the turning table to turn the pallet is provided on both ends of the traverse line to convey the pallet from the first conveying line to the second conveying line, the direction of the vehicle body loaded onto the pallet can be always invaria.ble for the conveying direction of the fxst and second conveying lines.
Consequently, the working efficiency of workers can be improved.
Claims (11)
1. A pallet conveying mechanism in a vehicle assembly line comprising a first conveying line and a second conveying line for placing parts on a plurality of pallets in a conveying direction and for conveying the parts, the plurality of pallets having a symmetrical form with respect to a front and a rear side of each of the pallets, a first axis comprising a pallet moving direction, said pallet conveying mechanism carrying a vacant pallet along a direction perpendicular to the first axis from one of a plurality of drop lifters which transfers from one of the plurality of pallets parts provided at an end point of the first conveying line, and loading the parts on one of the plurality of pallets to one of the plurality of drop lifters for transferring the parts provided at an opposing starting point of the second conveying line to one of the plurality of pallets and loading the parts on the plurality of pallets, said pallet conveying mechanism comprising:
a plurality of rollers arranged so as to move said vacant pallet perpendicularly to the first axis;
a driving means for rotating said rollers; and a guide means provided on a peripheral portion of the rollers for preventing said vacant pallet from veering while said vacant pallet is being conveyed.
a plurality of rollers arranged so as to move said vacant pallet perpendicularly to the first axis;
a driving means for rotating said rollers; and a guide means provided on a peripheral portion of the rollers for preventing said vacant pallet from veering while said vacant pallet is being conveyed.
2. An assembling line comprising;
a first conveying line;
a second conveying line;
a pallet conveying mechanism as set forth in claim 1, connecting an end point of said first conveying line and a starting point of said second conveying line, and a traverse line connecting the end point of said second conveying line and the starting point of said first conveying line, wherein the parts are attached to a vehicle body loaded onto a pallet while the pallet is circulated through the assembling line.
a first conveying line;
a second conveying line;
a pallet conveying mechanism as set forth in claim 1, connecting an end point of said first conveying line and a starting point of said second conveying line, and a traverse line connecting the end point of said second conveying line and the starting point of said first conveying line, wherein the parts are attached to a vehicle body loaded onto a pallet while the pallet is circulated through the assembling line.
3. An assembling line as set forth in claim 2, wherein said traverse line has a turning table at both ends of the traverse line to turn the pallet 90° around and said traverse line moves said pallet in a direction substantially parallel to said first axis.
4. An assembling line as set forth in claim 2, wherein the first and second conveying lines are friction conveyors.
5. An assembling line as set forth in claim 4, further comprising a lift to hoist and bring down the pallet for delivering between the friction conveyors.
6. An assembling line as set forth in claim 2, wherein the pallet is conveyed along said first conveying line, from the end point of said first conveying line to the starting point of said second conveying line, and along said second conveying line, without rotating.
7. The pallet conveying mechanism according to claim 1, further comprising a vehicle pallet conveying mechanism, wherein one of the pallet conveys a vehicle.
8. The assembling line as set forth in claim 2, further comprising a vehicle assembling line, wherein the vehicle assembling line assembles a vehicle by attaching parts to the vehicle while the vehicle is transferred by the pallet along the pallet conveying mechanism.
9. The pallet conveying mechanism according to claim 1, further comprising a stopping portion causing friction on a surface between the pallet and the stopping portion by rotating at a lower rotating speed than the driver means to stop the pallet.
10. The assembling line according to claim 2, wherein a front and a rear direction of the pallet is changed when the pallet is conveyed from the end point of the first conveying line to the starting point of the second conveying line.
11. A pallet conveying mechanism in a vehicle assembly line comprising:
a first conveying line;
a second conveying line;
a plurality of drop lifters;
a plurality of pallets having symmetrical front and rear sides, the plurality of pallets being conveyed along the first and second conveying lines;
a plurality of rollers;
a driving means for rotating said rollers; and a guide means provided on a peripheral portion of the rollers;
a first axis comprises a pallet conveying direction;
a vacant pallet is conveyed in a transverse direction which is a direction perpendicular to the first axis; one of the plurality of drop lifters transfers parts from one of the plurality of pallets provided at an end point of the first conveying line to a starting point of the second conveying line; the plurality of rollers are arranged to move said vacant pallet perpendicularly to the first axis;
and the guide means prevents said vacant pallet from veering while said vacant pallet is being conveyed in the transverse direction.
a first conveying line;
a second conveying line;
a plurality of drop lifters;
a plurality of pallets having symmetrical front and rear sides, the plurality of pallets being conveyed along the first and second conveying lines;
a plurality of rollers;
a driving means for rotating said rollers; and a guide means provided on a peripheral portion of the rollers;
a first axis comprises a pallet conveying direction;
a vacant pallet is conveyed in a transverse direction which is a direction perpendicular to the first axis; one of the plurality of drop lifters transfers parts from one of the plurality of pallets provided at an end point of the first conveying line to a starting point of the second conveying line; the plurality of rollers are arranged to move said vacant pallet perpendicularly to the first axis;
and the guide means prevents said vacant pallet from veering while said vacant pallet is being conveyed in the transverse direction.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000-279556 | 2000-09-14 | ||
| JP2000279556A JP3879967B2 (en) | 2000-09-14 | 2000-09-14 | Pallet transport assembly line |
| PCT/JP2001/007902 WO2002022473A1 (en) | 2000-09-14 | 2001-09-12 | Pallet transporting mechanism and assembly line using the mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2390939A1 CA2390939A1 (en) | 2002-03-21 |
| CA2390939C true CA2390939C (en) | 2008-02-19 |
Family
ID=18764544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002390939A Expired - Fee Related CA2390939C (en) | 2000-09-14 | 2001-09-12 | The palette conveyance mechanism and the assembling line using it |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US7090068B2 (en) |
| JP (1) | JP3879967B2 (en) |
| CN (1) | CN1215960C (en) |
| BR (1) | BR0107193A (en) |
| CA (1) | CA2390939C (en) |
| GB (1) | GB2371282B (en) |
| WO (1) | WO2002022473A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104647116A (en) * | 2015-01-26 | 2015-05-27 | 天津市武清区精诚金属制品有限公司 | Equipment for auxiliary loading of metal plate cutter |
Families Citing this family (70)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4189685B2 (en) * | 2005-08-04 | 2008-12-03 | 株式会社ダイフク | Carriage transfer device |
| JP2007217078A (en) * | 2006-02-14 | 2007-08-30 | Asyst Shinko Inc | Direction changing device |
| US7861392B2 (en) * | 2006-02-27 | 2011-01-04 | American Axle & Manufacturing, Inc. | Method of assembling a power transmission device |
| JP5330836B2 (en) * | 2006-03-18 | 2013-10-30 | 合肥博普高新科技有限公司 | Vehicle line |
| US7975617B2 (en) * | 2006-03-18 | 2011-07-12 | Hefei Bopu High-Tech Co., Ltd. | Routing device |
| JP4814373B2 (en) * | 2006-04-29 | 2011-11-16 | トルンプフ レーザー− ウント ジュステームテヒニク ゲゼルシャフト ミット ベシュレンクテル ハフツング | Device for moving workpiece and / or machining remainder and device for machining workpiece |
| AT503429B1 (en) * | 2006-08-14 | 2007-10-15 | Sticht Fertigungstech Stiwa | Turntable, has parts carrier, which is provided with guide elements, by which parts carrier is guided along guide tracks, and transfer medium has guide track, along which parts carrier is guided by one of guide elements |
| JP4658893B2 (en) * | 2006-10-11 | 2011-03-23 | 新明工業株式会社 | Work transfer device |
| KR101013969B1 (en) * | 2008-08-25 | 2011-02-14 | 현대자동차주식회사 | A moving cart system |
| US8109550B1 (en) | 2008-09-29 | 2012-02-07 | Honda Motor Co., Ltd. | Pack end tool |
| JP5212836B2 (en) * | 2009-09-15 | 2013-06-19 | 株式会社ダイフク | Work transfer equipment |
| JP2011152615A (en) * | 2010-01-28 | 2011-08-11 | Honda Motor Co Ltd | Workpiece assembly method |
| CN102717254B (en) * | 2011-03-31 | 2014-10-22 | 中原工学院 | Workbench of automatic press-fit production line for spindle blades and spindle whorls |
| CN102390677A (en) * | 2011-08-03 | 2012-03-28 | 江苏天奇物流系统工程股份有限公司 | Sliding plate conveying system with accompanied lifting function |
| CN102717210B (en) * | 2012-03-28 | 2015-05-06 | 安徽理士电源技术有限公司 | Rotary welding table |
| CN103420131B (en) * | 2012-05-24 | 2016-05-11 | 昆山瀚崴自动化设备有限公司 | A kind of high efficiency levels circulation assembly line |
| CN102684629B (en) * | 2012-06-05 | 2015-02-25 | 深圳市科锐尔自动化设备有限公司 | Column crystal automatic fine-tuning machine |
| CN103465017B (en) * | 2012-06-08 | 2016-05-04 | 京东方科技集团股份有限公司 | Backlight membrane material group erects standby |
| CN102730369B (en) * | 2012-06-18 | 2015-03-04 | 惠州市三协精密有限公司 | Flexible working section of assembly line and working method thereof |
| KR101214927B1 (en) * | 2012-08-13 | 2012-12-27 | 주식회사 코람에스티 | Roller conveyer system |
| CN102849423B (en) * | 2012-09-29 | 2015-08-12 | 厦门思尔特机器人系统有限公司 | Heavy rail free shuttling dolly |
| CN103771096A (en) * | 2012-10-19 | 2014-05-07 | 汉姆巴填充技术有限责任两合公司 | Device for filling containers |
| CN103771104A (en) * | 2012-10-19 | 2014-05-07 | 汉姆巴填充技术有限责任两合公司 | Container filling device |
| CN102981492B (en) * | 2012-12-13 | 2014-12-31 | 新兴铸管股份有限公司 | Treating technology for ductile iron pipes after annealing |
| JP6217927B2 (en) * | 2014-03-11 | 2017-10-25 | 株式会社ダイフク | Carriage transfer device |
| US9974419B2 (en) | 2014-04-23 | 2018-05-22 | The Clorox Company | Disinfecting wipes dispenser |
| CN104386437A (en) * | 2014-11-19 | 2015-03-04 | 郑鸿彪 | Elbow for closed-loop assembly line |
| JP6615067B2 (en) * | 2015-09-08 | 2019-12-04 | Ｎｉｔｔｏｋｕ株式会社 | Pallet transport device |
| CN105151708A (en) * | 2015-09-28 | 2015-12-16 | 芜湖职业技术学院 | Assembling line for automobile parts |
| CN105151700B (en) * | 2015-09-30 | 2017-07-14 | 迈得医疗工业设备股份有限公司 | A kind of conveying mechanism of medical Transfusion device kludge |
| CN105540182B (en) * | 2016-01-26 | 2017-07-04 | 河北工业大学 | A kind of large-scale framework pipeline |
| CN105667635B (en) * | 2016-04-08 | 2019-04-12 | 安徽华菱汽车有限公司 | It is a kind of for assembling the line production system of bodywork assembly |
| CN105947576B (en) * | 2016-06-27 | 2019-09-03 | 江苏金坛汽车工业有限公司 | Ornamental thread station board transportation system and its process flow in auto assembly |
| CN106276106A (en) * | 2016-08-31 | 2017-01-04 | 无锡锡南铸造机械股份有限公司 | A kind of rotating roller formula RGV intelligent vehicle |
| JP6686819B2 (en) * | 2016-09-20 | 2020-04-22 | 三菱自動車工業株式会社 | Vehicle assembly line |
| CN106514249B (en) * | 2016-12-14 | 2019-01-08 | 常州赛凯电器设备有限公司 | A kind of smoke alarm assembly line |
| CN106695571B (en) * | 2016-12-24 | 2019-02-12 | 陈洪灿 | Remove bamboo blueness equipment |
| CN114919941B (en) * | 2016-12-26 | 2024-04-16 | 富通集团（嘉善）通信技术有限公司 | Conveying device for optical cable bundle tube plate |
| US11312571B2 (en) | 2017-01-17 | 2022-04-26 | Amazon Technologies, Inc. | Stackable inventory storage modules, storage systems, and methods of using the same |
| US10696480B2 (en) | 2017-07-21 | 2020-06-30 | Amazon Technologies, Inc. | Storage module configured to accelerate transition of inventory carriers between upper and lower tracks |
| US10179695B2 (en) | 2017-01-17 | 2019-01-15 | Amazon Technologies, Inc. | Container-based storage using stackable storage modules |
| US10322878B2 (en) | 2017-07-21 | 2019-06-18 | Amazon Technologies, Inc. | Storage module having inventory carriers that are elongate along a lateral direction to carry a plurality of storage containers |
| US11358793B2 (en) | 2017-01-17 | 2022-06-14 | Amazon Technologies, Inc. | Stackable inventory storage modules, storage systems, and methods of using the same |
| US10815082B2 (en) | 2017-10-30 | 2020-10-27 | Amazon Technologies, Inc. | Inventory storage module having a conveying loop with vertical lift |
| US10239690B2 (en) | 2017-01-17 | 2019-03-26 | Amazon Technologies, Inc. | Stackable storage modules |
| US10273085B2 (en) | 2017-01-17 | 2019-04-30 | Amazon Technologies, Inc. | Item transfer using stackable storage modules |
| US10287097B2 (en) | 2017-07-21 | 2019-05-14 | Amazon Technologies, Inc. | Modular storage system having segments that couple to one another to define closed loop tracks that move inventory |
| CN106927209A (en) * | 2017-05-10 | 2017-07-07 | 无锡福源自动化系统工程有限公司 | The induction system of container production line |
| CN107081597B (en) * | 2017-06-13 | 2019-11-29 | 苏州和自兴智能科技有限公司 | A kind of scissor-like jack wears riveting automatic production line and working method |
| DE102017113953B3 (en) * | 2017-06-23 | 2018-10-31 | Flexlink Ab | Passive transport device for transporting conveyed goods and transport system, method and control method for this purpose |
| US10196208B1 (en) * | 2017-09-29 | 2019-02-05 | Amazon Technologies, Inc. | Inventory storage module having a closed conveying loop in a horizontal plane |
| US10807798B1 (en) | 2017-10-31 | 2020-10-20 | Amazon Technologies, Inc. | Inventory storage module having actuators that move storage totes around a conveyor loop |
| US11059668B1 (en) | 2018-01-16 | 2021-07-13 | Amazon Technologies, Inc. | Stackable inventory storage module, system, and method of using the same |
| DE102018109934A1 (en) * | 2018-04-25 | 2019-10-31 | Eisenmann Se | Treatment plant for the treatment of workpieces |
| CN111099337B (en) * | 2018-10-28 | 2024-06-18 | 深圳市兴禾自动化股份有限公司 | Vehicle-driven type battery cell processing and conveying line and conveying process thereof |
| CN109896256B (en) * | 2019-04-13 | 2024-03-19 | 中山市四海智能装备有限公司 | Tray device with conveyor lines compatible with different widths and use method thereof |
| CN110615248A (en) * | 2019-10-18 | 2019-12-27 | 安徽华菱汽车有限公司 | Tray system for assisting workpiece in online measurement |
| CN110744511A (en) * | 2019-11-06 | 2020-02-04 | 广东雅迪机车有限公司 | Dual-purpose processing system for electric bicycle and motorcycle |
| CN111015041B (en) * | 2019-12-04 | 2021-08-20 | 郑州日产汽车有限公司 | Single-station automatic welding system for symmetrical workpieces |
| CN111408851B (en) * | 2020-04-02 | 2021-11-30 | 上海精测半导体技术有限公司 | Multi-station wheel rotating equipment |
| CN111361936B (en) * | 2020-04-16 | 2024-09-24 | 衡阳华菱钢管有限公司 | Linear motion vehicle body assembly with rotary structure |
| CN111661585A (en) * | 2020-06-08 | 2020-09-15 | 大族激光科技产业集团股份有限公司 | Circulation working equipment |
| CN113798843B (en) * | 2020-08-13 | 2023-03-21 | 中车唐山机车车辆有限公司 | Shock absorber assembly production line transmission system and shock absorber assembly production line |
| IT202100000698A1 (en) * | 2021-01-15 | 2022-07-15 | Geico Spa | IMPROVED MODULAR TRANSPORT SYSTEM |
| CN112919089B (en) * | 2021-01-27 | 2024-09-03 | 长春富维安道拓汽车饰件系统有限公司 | Automobile seat delivery platform compatible with punctualization and storage modes and application method thereof |
| CN113086633B (en) * | 2021-03-25 | 2024-01-09 | 苏州嘉斯度智能装备有限公司 | Feeding and discharging system of automatic head melting machine |
| CN113697008A (en) * | 2021-07-28 | 2021-11-26 | 广东嘉腾机器人自动化有限公司 | Method for producing industrial operation vehicle |
| CN113911700A (en) * | 2021-08-31 | 2022-01-11 | 广东文灿压铸科技有限公司 | Handling system of car gearbox shell |
| CN114211151B (en) * | 2021-12-31 | 2023-10-24 | 无锡骄成智能科技有限公司 | Automatic welding ring streamline of battery cell and battery cell welding station |
| CN118720727A (en) * | 2024-09-04 | 2024-10-01 | 昆山倚天智能科技股份有限公司 | Full-automatic assembly detection production line for automobile lock parts |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5433422B2 (en) * | 1973-03-01 | 1979-10-20 | ||
| JPS51135085A (en) * | 1975-05-14 | 1976-11-22 | Bigesu Spa | Closed loop transportation device |
| US4479572A (en) * | 1981-11-10 | 1984-10-30 | Merz William J | Conveyor system |
| AT382808B (en) * | 1982-03-05 | 1987-04-10 | Sticht Fertigungstech Stiwa | EQUIPMENT FOR MOUNTING OR EDITING WORKPIECES |
| AT392050B (en) * | 1984-02-06 | 1991-01-10 | Sticht Walter | MANUFACTURING SYSTEM WITH SEVERAL SINGLE STATIONS |
| DE3840256A1 (en) * | 1988-11-25 | 1990-05-31 | Mannesmann Ag | TRANSPORT DEVICE WITH A FLOW MANUFACTURING ROAD |
| US5213195A (en) * | 1989-03-08 | 1993-05-25 | Walter Sticht | Assembly line |
| AT398923B (en) * | 1989-04-04 | 1995-02-27 | Sticht Walter | MANUFACTURING SYSTEM WITH PARALLEL AND ADDITIONAL CONVEYOR |
| JPH0423713A (en) * | 1990-05-17 | 1992-01-28 | Nippondenso Co Ltd | Transport roller |
| JP2860155B2 (en) | 1990-10-18 | 1999-02-24 | 株式会社ダイフク | Roller conveyor |
| JPH06271055A (en) * | 1993-03-19 | 1994-09-27 | Suzuki Motor Corp | Transfer device |
| JPH08244930A (en) | 1995-03-13 | 1996-09-24 | Dainippon Screen Mfg Co Ltd | Base board carrier |
| JPH08282834A (en) * | 1995-04-13 | 1996-10-29 | Nippon Steel Corp | Pallet circulating device |
| DE19704441C2 (en) * | 1997-02-06 | 1998-11-12 | Bosch Gmbh Robert | Transport system |
| US6098786A (en) * | 1997-10-03 | 2000-08-08 | Shuttleworth, Inc. | Slippable roller conveyor for a cleanroom |
-
2000
- 2000-09-14 JP JP2000279556A patent/JP3879967B2/en not_active Expired - Fee Related
-
2001
- 2001-09-12 BR BR0107193-9A patent/BR0107193A/en active Search and Examination
- 2001-09-12 CN CN018027555A patent/CN1215960C/en not_active Expired - Fee Related
- 2001-09-12 WO PCT/JP2001/007902 patent/WO2002022473A1/en active Application Filing
- 2001-09-12 CA CA002390939A patent/CA2390939C/en not_active Expired - Fee Related
- 2001-09-12 GB GB0210384A patent/GB2371282B/en not_active Expired - Fee Related
- 2001-09-12 US US10/111,934 patent/US7090068B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104647116A (en) * | 2015-01-26 | 2015-05-27 | 天津市武清区精诚金属制品有限公司 | Equipment for auxiliary loading of metal plate cutter |
Also Published As
| Publication number | Publication date |
|---|---|
| US7090068B2 (en) | 2006-08-15 |
| CN1392858A (en) | 2003-01-22 |
| BR0107193A (en) | 2002-07-02 |
| US20020162727A1 (en) | 2002-11-07 |
| JP3879967B2 (en) | 2007-02-14 |
| GB0210384D0 (en) | 2002-06-12 |
| WO2002022473A1 (en) | 2002-03-21 |
| GB2371282A (en) | 2002-07-24 |
| GB2371282B (en) | 2005-02-09 |
| JP2002087576A (en) | 2002-03-27 |
| CA2390939A1 (en) | 2002-03-21 |
| CN1215960C (en) | 2005-08-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2390939C (en) | The palette conveyance mechanism and the assembling line using it | |
| US7008164B2 (en) | Automated guided vehicle | |
| KR0167881B1 (en) | Wafer transfer system & its control method | |
| CA2350562C (en) | Transfer system | |
| CA2458255C (en) | Conveyance apparatus | |
| JP2000318664A (en) | Hybrid carriage | |
| KR100342266B1 (en) | Cargo transport equipment and its guidance equipment | |
| JP3877198B2 (en) | Work transport mechanism | |
| JPH08324772A (en) | Work carrier device | |
| JPH08155761A (en) | Production facility | |
| JP2000001213A (en) | Storage device for conveying truck | |
| JPH01317881A (en) | Method for transferring door between lines to produce automobile | |
| KR100301094B1 (en) | Multi-level parking facility | |
| JP2555066Y2 (en) | Conveying device for body components | |
| SU1728091A1 (en) | Overhead conveyer | |
| SU1425148A1 (en) | Conveyer system for moving wheeled vehicles | |
| KR100401803B1 (en) | Chain type system for inputting and outputting vehicle | |
| JP2532336Y2 (en) | Conveyor drive interlocking device for conveyor transfer delivery type parking device | |
| KR930000611Y1 (en) | Roller driving means used in roller conveyor | |
| JPH0338464A (en) | Unmanned carrier | |
| JPH041011Y2 (en) | ||
| SU1323486A1 (en) | Conveyer for transporting articles | |
| JPH07238703A (en) | Travelling truck for mechanical type parking device | |
| CN114291149A (en) | Emergency treatment tool for carrying AGV (automatic guided vehicle) of airport luggage container | |
| JP2554265Y2 (en) | Mechanical parking equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |